All Medium Articles

Java.net.URI class in Java

This class provides methods for creating URI instances from its components or by parsing the string form of those components, for accessing and retrieving different… Read More

Misc

Check if a given string is a valid number (Integer or Floating Point) | SET 1(Basic approach)

Validate if a given string is numeric. Examples: Input : str = "11.5" Output : true Input : str = "abc" Output : false Input… Read More

DSA

Strings

Pointer to an Array | Array Pointer

Prerequisite: Pointers Introduction Consider the following program: C #include<stdio.h> int main() { int arr[5] = { 1, 2, 3, 4, 5 }; int *ptr… Read More

C-Pointers

C Language

Comparison of boolean data type in C++ and Java

The Boolean data type is one of the primitive data types in both C++ and Java. Although, it may seem to be the easiest of… Read More

cpp-data-types

Java-Data Types

C++

Java

Numbsubarrayer of elements less than or equal to a given number in a given

Given an array ‘a[]’ and number of queries q. Each query can be represented by l, r, x. Your task is to print the number… Read More

array-range-queries

Binary Indexed Tree

Advanced Data Structure

DSA

Deleting points from Convex Hull

Given a fixed set of points. We need to find convex hull of given set. We also need to find convex hull when a point… Read More

DSA

Geometric

Next greater integer having one more number of set bits

Given a positive integer ‘n’ having ‘x’ number of set bits in its binary representation. The problem is to find the next greater integer(smallest integer… Read More

Bit Magic

DSA

MongoDB and Python

Prerequisite : MongoDB : An introduction MongoDB is a cross-platform, document-oriented database that works on the concept of collections and documents. MongoDB offers high speed,… Read More

MongoDB

Python

Technical Scripter

Maximum Length Bitonic Subarray | Set 2 (O(n) time and O(1) Space)

Given an array A[0 … n-1] containing n positive integers, a subarray A[i … j] is bitonic if there is a k with i <=… Read More

Arrays

DSA

Print a given matrix in reverse spiral form

Given a 2D array, print it in reverse spiral form. We have already discussed Print a given matrix in spiral form. This article discusses how… Read More

Basic Coding Problems

pattern-printing

spiral

DSA

Matrix

Bead Sort | A Natural Sorting Algorithm

Also known as Gravity sort, this algorithm was inspired by natural phenomena and was designed keeping in mind objects(or beads) falling under the influence of… Read More

Pigeonhole Principle

DSA

Sorting

Find numbers with n-divisors in a given range

Given three integers a, b, n .Your task is to print number of numbers between a and b including them also which have n-divisors. A… Read More

divisibility

divisors

sieve

DSA

Mathematical

Maximum sum in a 2 x n grid such that no two elements are adjacent

Given a rectangular grid of dimension 2 x n. We need to find out the maximum sum such that no two chosen numbers are adjacent,… Read More

Epic Systems

DSA

Dynamic Programming

Matrix

Understanding Python Pickling with example

In Python, we sometimes need to save the object on the disk for later use. This can be done by using Python pickle. In this… Read More

Python

pickle — Python object serialization

Python is a widely used general-purpose, high-level programming language. In this article, we will learn about pickling and unpickling in Python using the pickle module. The… Read More

Python-Library

Misc

Python

Thread Pools in Java

Background Server Programs such as database and web servers repeatedly execute requests from multiple clients and these are oriented around processing a large number of… Read More

Java

BankBazaar.com Interview Experience | Set 7 (For Senior Android Developer)

Position : Senior Android Developer The competency would be Tech Fit (Problem Solving, Data Structures & Algorithm) First Round: Telephonic Round: 1. Clone a linked… Read More

BankBazaar

Arrays

DSA

Dynamic Programming

Experienced

Experiences

Interview Experiences

Linked List

Paytm Interview Experience | Set 14 (For Senior android Developer)

Senior android Developer Coding Round: Spirally traversing a matrix Longest Increasing Subsequence First Round: find “longest line” of 1’s in array. Hoizontal and Vertical. Array… Read More

DFS

Merge Sort

Paytm

Arrays

DSA

Dynamic Programming

Experienced

Experiences

Graph

Interview Experiences

Linked List

Matrix

Sorting

Strings

Angular Sweep (Maximum points that can be enclosed in a circle of given radius)

Given ‘n’ points on the 2-D plane, find the maximum number of points that can be enclosed by a fixed-radius circle of radius ‘R’. Note: The… Read More

DSA

Geometric

Sum of divisors of factorial of a number

Given a number n, we need to calculate the sum of divisors of factorial of the number. Examples: Input : 4 Output : 60 Factorial… Read More

divisors

factorial

number-theory

DSA

Mathematical